At what rate in watts does the jet airplane in Problem 3 radiate energy in the form
Question:
The intensity of the sound wave from a jet airplane as it is taking off is 1.0 × 102 W/m2 at a distance of 5.0 m.
What is the intensity of the sound wave that reaches the ears of a person standing at a distance of 120 m from the runway? Assume that the sound wave radiates from the airplane equally in all directions.
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Related Book For 
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
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